Abstract: A driving circuit and lighting equipment using the same are provided. The driving circuit includes a first power receiving terminal, a second power receiving terminal and a power conversion unit. The first power receiving terminal receives an alternating current (AC) input signal. The second power receiving terminal is electrically coupled to a predetermined potential. The power conversion unit is electrically coupled to the first and second power receiving terminals for transforming the AC input signal into corresponding two AC output signals of different phases, wherein the two AC output signals are with the same current.

Abstract: A single piece light guide is disclosed herein. The single piece light guide may include a light rod and a lens. The single piece light guide may be formed using injection molding. The light guide may have one or more regions between the light rod and the lens. A housing may be provided for the light guide. The housing may have an opening that physically supports the light rod. Therefore, the light rod may be secured into place, which may prevent misalignment during use. The one or more regions between the light rod and the lens may assist in assembling and holding the light guide in the housing.

Abstract: The present invention relates to a method for manufacturing a graphene layer, comprising the following steps: providing a substrate; forming a metal layer on a first side of the substrate; forming a carbon source layer on the metal layer; providing a laser, which irradiates a second side of the substrate and passes through the substrate to form a graphene layer on an interface between the substrate and the metal layer; and providing an organic solvent and an acid solution to remove the carbon source layer and the metal layer respectively.

Abstract: An optical touch apparatus includes a sensing region, a first and a second light emitting assemblies and a first and a second light sensor devices. The first and second light emitting assemblies are disposed in an edge of the sensing region. The first and second light emitting assemblies include a light emitting device and an optical cover including a light incidence, light emission and reflection parts, which defines a space for accommodating the light emitting device. The light from the light emitting device is emitted into and out from the optical cover sequentially through the light incidence and emission parts. The reflection part is connected between the light incidence and emission parts and for reflecting the light from the light emitting device. The first and second light sensor devices overlay the light emitting devices of the first and second light emitting assemblies, respectively. An optical sensor module is also provided.

Abstract: The present invention provides a micro-projection lens including first lens group, a second lens group, and a third lens group arranged in sequence along an optical axis from a screen side to a light modulator side. The first lens group has positive refractive power and includes at least an aspheric lens. The second lens group has negative refractive power and includes at least a glass tablet. The third lens group has positive refractive power and includes at least an aspheric lens. Therefore, the micro-projection lens of the present invention has a small size and high optical performance.

Abstract: A projection lens, in order along an optical axis from an image formation side to an image source side, includes a first lens, an aperture, a second lens, a third lens, and a fourth lens. The first lens is a meniscus lens with positive refractive power and a convex surface thereof facing the image formation side, and has at least an aspheric surface. The second lens is a biconcave lens with negative refractive power, and has at least an aspheric surface. The third lens is a biconvex lens with positive refractive power, and the fourth lens is a biconvex lens with positive refractive power, and has at least an aspheric surface. Therefore, the projection lens has a small size and high zoom ratio.

Abstract: A single piece light guide is disclosed herein. The single piece light guide may include a light rod and a lens. The single piece light guide may be formed using injection molding. The light guide may have one or more regions between the light rod and the lens. A housing may be provided for the light guide. The housing may have an opening that physically supports the light rod. Therefore, the light rod may be secured into place, which may prevent misalignment during use. The one or more regions between the light rod and the lens may assist in assembling and holding the light guide in the housing.

Abstract: A phase locked loop includes a voltage controlled oscillator operable to generate an output signal corresponding to a reference signal in response to a control voltage signal outputted by a filter in response to a current signal, and a variable frequency divider operable to perform frequency division on the output signal using a variable divisor so as to generate a divided feedback signal. A charge pump outputs the current signal in response to a phase detecting output from a phase/frequency detector indicating phases of the divided feedback signal and the reference signal. A phase error comparator outputs, in accordance with the phase detecting output, a digital output indicating whether the divided feedback signal lags or leads the reference signal and further indicating a phase difference between the divided feedback signal and the reference signal.

Abstract: The invention discloses a method for outputting consecutive characters in a video-recording mode. The method includes obtaining a first image and a second image from an object, comparing the first image and the second image to obtain a third image which is the overlapping part of the first image and the second image, removing the third image from the second image to generate a fourth image, integrating the fourth image with the first image to obtain a fifth image and recognize characters on the fifth image by OCR software and output the characters of the fifth image.

Abstract: A single piece light guide is disclosed herein. The single piece light guide may include a light rod and a lens. The single piece light guide may be formed using injection molding. The light guide may have one or more regions between the light rod and the lens. A housing may be provided for the light guide. The housing may have an opening that physically supports the light rod. Therefore, the light rod may be secured into place, which may prevent misalignment during use. The one or more regions between the light rod and the lens may assist in assembling and holding the light guide in the housing.

Abstract: A single piece light guide is disclosed herein. The single piece light guide may include a light rod and a lens. The single piece light guide may be formed using injection molding. The light guide may have one or more regions between the light rod and the lens. A housing may be provided for the light guide. The housing may have an opening that physically supports the light rod. Therefore, the light rod may be secured into place, which may prevent misalignment during use. The one or more regions between the light rod and the lens may assist in assembling and holding the light guide in the housing.

Abstract: A single piece light guide is disclosed herein. The single piece light guide may include a light rod and a lens. The single piece light guide may be formed using injection molding. The light guide may have one or more regions between the light rod and the lens. A housing may be provided for the light guide. The housing may have an opening that physically supports the light rod. Therefore, the light rod may be secured into place, which may prevent misalignment during use. The one or more regions between the light rod and the lens may assist in assembling and holding the light guide in the housing.

Abstract: A light source module of a projector includes a beam splitter, a red light source, a blue light source, and a blue light source. The beam splitter has a first reflection side, on which a first splitter film is provided, and a second reflection side, on which a second splitter film is provided. An angle between a normal line of the first reflection side, and a normal line of the second reflection side, is in a range between 165 degrees and 180 degrees. Both the first splitter film and the second splitter film permit red rays to pass therethrough. The red light source is separated from the blue and green light sources to obtain a better thermal dissipation.

Abstract: An optical polarization converter system includes a plurality of lenses, a light incident surface, a light emitting surface, a first optical coating, a second optical coating and a half-wave plate. The lenses are made of light permeable medium and mutually and tightly arranged. A plurality of basic widths are defined on the light incident surface and the light emitting surface. The first optical coating and second optical coating, configured between the light incident surface and the light emitting surface and having an inclined angle of forty-five degrees relative to the light incident surface, are spaced apart one basic width. The half-wave plate is disposed on the light emitting surface corresponding to one of the first optical coating and the second optical coating. The first and second optical coatings are provided with properties of splitting an incident beam and beam reflection.

Abstract: A three-dimensional glasses including a glasses main body, a touch control circuit, a first and a second touch sensing interfaces, a glasses circuit system and a power supplying module is provided. The glasses main body has a first and a second sensing portions. The touch control circuit and the glasses circuit system are disposed in the glasses main body. The first and the second touch sensing interfaces are disposed at the first and the second sensing portions, electrically connected to the touch control circuit, and respectively transmit a first and a second input signals to the touch control circuit. After the touch control circuit receives the first and the second input signals, the touch control circuit transmits a power supplying signal to the power supplying module to drive the power supplying module to supply power to the glasses circuit system. Besides, a power supplying method is also provided.

Abstract: Techniques to securely boot up an electronics device (e.g., a cellular phone) from an external storage device are described. Secure data (e.g., a hash digest, a signature, a cryptographic key, and so on) is initially retrieved from a non-writable area of an external memory device (e.g., an one-time programmable (OTP) area of a NAND Flash device). A first program (e.g., a boot program) is retrieved from a writable or main area of the external memory device and authenticated based on the secure data. The first program is enabled for execution if authenticated. A second program may be retrieved from the main area of the external memory device and authenticated based on the secure data. The second program is enabled for execution if authenticated. Additional programs may be retrieved and authenticated. Each program may be authenticated using a secure hash function, a digital signature, and/or some other cryptographic technique.

Abstract: A packaging substrate includes a core board having a first surface and an opposite second surface; at least a conic through hole formed in the core board and penetrating the first and second surfaces; a plurality of conductive paths formed on a wall of the conic through hole, free from being electrically connected to one another in the conic through hole; and a plurality of first circuits and second circuits disposed on the first and second surfaces of the core board, respectively, and being in contact with peripheries of two ends of the conic through hole, wherein each of the first circuits is electrically connected through each of the conductive paths to each of the second circuits. Compared to the prior art, the packaging substrate has a reduced number of through holes or vias and an increased overall layout density.

Abstract: The present invention provides a micro-projection lens including first lens group, a second lens group, and a third lens group arranged in sequence along an optical axis from a screen side to a light modulator side. The first lens group has positive refractive power and includes at least an aspheric lens. The second lens group has negative refractive power and includes at least a glass tablet. The third lens group has positive refractive power and includes at least an aspheric lens. Therefore, the micro-projection lens of the present invention has a small size and high optical performance.

Abstract: A driving circuit and lighting equipment using the same are provided. The driving circuit includes a first power receiving terminal, a second power receiving terminal and a power conversion unit. The first power receiving terminal receives an alternating current (AC) input signal. The second power receiving terminal is electrically coupled to a predetermined potential. The power conversion unit is electrically coupled to the first and second power receiving terminals for transforming the AC input signal into corresponding two AC output signals of different phases, wherein the two AC output signals are with the same current.

Abstract: A light source module of a projector includes a beam splitter, a red light source, a blue light source, and a blue light source. The beam splitter has a first reflection side, on which a first splitter film is provided, and a second reflection side, on which a second splitter film is provided. An angle between a normal line of the first reflection side, and a normal line of the second reflection side, is in a range between 165 degrees and 180 degrees. Both the first splitter film and the second splitter film permit red rays to pass therethrough. The red light source is separated from the blue and green light sources to obtain a better thermal dissipation.